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US5692848A - Ring binder - Google Patents

Ring binder Download PDF

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Publication number
US5692848A
US5692848A US08/663,262 US66326296A US5692848A US 5692848 A US5692848 A US 5692848A US 66326296 A US66326296 A US 66326296A US 5692848 A US5692848 A US 5692848A
Authority
US
United States
Prior art keywords
swing
plates
joint
edge
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/663,262
Other languages
English (en)
Inventor
Takao Wada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kokuyo Co Ltd
Original Assignee
Kokuyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kokuyo Co Ltd filed Critical Kokuyo Co Ltd
Assigned to KOKUYO CO., LTD. reassignment KOKUYO CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WADA, TAKAO
Application granted granted Critical
Publication of US5692848A publication Critical patent/US5692848A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
    • B42F13/00—Filing appliances with means for engaging perforations or slots
    • B42F13/16—Filing appliances with means for engaging perforations or slots with claws or rings
    • B42F13/20—Filing appliances with means for engaging perforations or slots with claws or rings pivotable about an axis or axes parallel to binding edges
    • B42F13/22—Filing appliances with means for engaging perforations or slots with claws or rings pivotable about an axis or axes parallel to binding edges in two sections engaging each other when closed
    • B42F13/26—Filing appliances with means for engaging perforations or slots with claws or rings pivotable about an axis or axes parallel to binding edges in two sections engaging each other when closed and locked when so engaged, e.g. snap-action

Definitions

  • This invention relates to a ring binder for removably binding separate sheets with binding holes by opening and closing binding rings.
  • a pair of opposing swing plates are pivotally attached to the longitudinal edges of a fixed plate by means of a hinge mechanism, and a pair of opposing ring halves which form a binding ring are fixedly mounted at their bases onto the swing plates.
  • the hinge mechanisms on the swing plates is normally provided with a coil spring for resiliently biasing the swing plates away from the top face of the fixed plate.
  • the opposing swing plates are separately rotated until their swing edges come closer to the top face of the fixed plate, thus bringing the ends of the ring halves into engagement with each other.
  • the swing plate are rotated so that their swing edges move away from the top of the fixed plate.
  • the opposing swing plates are independently hinged to the fixed plate, it is necessary to rotate the opposing swing plates separately by hand manipulation, making one-touch operation by one hand difficult.
  • the coil spring must be incorporated into each of the hinge mechanisms for the opposing swing plates, which increases the number of necessary parts.
  • the opposing swing plates in order to achieve stable engagement between the ends of the ring halves, the opposing swing plates must be precisely mounted. But for the swing plates to be able to pivotally rotate, some free play in a longitudinal direction must be allowed, and so are the mounting tolerance.
  • the ends of the opposing ring halves inevitably clash against each other, making it difficult to accomplish stable engagement of the ring halves.
  • the ring binder in accordance with this invention includes a fixed plate, a pair of opposing swing plates pivotally attached to the longitudinal edges of the fixed plate by means of a hinge mechanism, and binding rings fixedly mounted on the swing plates.
  • the binding rings are closed, while, on the other hand, as the swinging edges of the opposing swing plates are moved pivotally away from the top of the fixed plate, the binding rings are opened.
  • the swinging edges of the opposing swing plates are uniquely connected together by a joint mechanism so that the opposing swing plates are moved pivotally together toward and away from the top face of the fixed plate.
  • the joint mechanism may include a male joint having a projection fixedly mounted to the swinging edge of one swing plate, and a female joint fixedly mounted to the swinging edge of the other swing plate at a position corresponding to the male joint and having a slot extending along the width at a position corresponding to the projection.
  • the male joint and the female joint are engaged together by means of the projection being slidably fitted into the slot, thus connecting the swinging edges of the opposing swing plates together.
  • the joint mechanism may include a protruded joint section formed on the swing edge of one swing plate, and a recessed joint section formed on the swing edge of the other swing plate.
  • the joint mechanism may include a male joint formed in the side face of the recessed joint section, and a female joint formed in the side face of the protruded joint section at a position corresponding to the male joint, or a male joint formed in the side face of the protruded joint section and a female joint formed in the side face of the recessed joint section at a position on corresponding to the male joint.
  • the hinge mechanism may include spring means only in that hinge mechanism provided on one swing plate for resiliently biasing the swinging edge of the swing plate away from the top face of the fixed plate.
  • the binding ring may include opposing ring halves fixedly mounted at their bases near the bottom edges of the swing plates, and having formed at their ends locking portions. As the ring halves are closed, the ring halves are joined together at their locking ends.
  • the ring binder of the above-described arrangement operates in use as follows.
  • pivotally move only one swing base plate to bring its swing edge closer toward the top face of the fixed plate, which simultaneously brings the swinging edge of the other swing plate closer toward the top face of the fixed plate by means of the joint mechanism, thus closing the binding rings.
  • pivotally move only one swing base plate to bring its swing edge away from the top face of the fixed plate, which simultaneously brings the swinging edge of the other swing plate away from the top face of the fixed plate by means of the joint mechanism, thus opening the binding rings.
  • the opposing swing plates pivotally move together via operative engagement by the joint mechanisms, it is only necessary to manipulate either one of the swing plates for the closing and opening of the binding rings, making an one-touch operation possible with greater ease of operation.
  • the swinging edges of the opposing swing plates are connected together by slidably fitting the projection of the male joint into the slot of the female joint.
  • This simple construction is effectively achieve the above advantages while making it possible to reduce both manufacturing costs and manufacturing processes.
  • the arrangement in which the protruded joint section slidably move within the recessed joint section as the swing plates pivotally move is effective in reducing the longitudinal offset in the position of the swing plates by means of the operative engagement between the side faces of the recessed joint section and the side faces of the protruded joint section, which, in turn, ensures a steady opening and closing operation of the binding rings even if the mounting accuracy of the swing plates is rather low.
  • the male joint and the female joint in the recessed joint section and the protruded joint section, respectively, or in the protruded joint section and the recessed joint section, respectively, it is possible to achieve the above advantages with the simplest arrangement.
  • the binding rings are so designed that the opposing pair of ring halves be locked together at their locking ends, eliminating the need for the joint mechanism to keep the binding rings in their closed position, which in turn leads to a simple construction of the joint mechanism as well as to an improved operation.
  • the swinging edges of the opposing swing plates are connected together by slidable engagement between the male joint and the female joint.
  • This simple construction is effectively achieve the above advantages while making it possible to reduce both manufacturing costs and manufacturing processes.
  • the arrangement in which the protruded joint section slidably move within the recessed joint section as the swing plates pivotally move is effective in reducing the longitudinal offset in the position of the swing plates, which, in turn, ensures a steady opening and closing operation of the binding rings even if the mounting accuracy of the swing plates is rather low.
  • the male joint and the female joint in the recessed joint section and the protruded joint section, respectively, or in the protruded joint section and the recessed joint section, respectively, it is possible to achieve the above advantages with the simplest arrangement.
  • the binding rings are so designed that the opposing pair of ring halves be locked together at their locking ends, eliminating the need for the joint mechanism to keep the binding rings in their closed position, which in turn leads to a simple construction of the joint mechanism as well as to an improved operation.
  • the present invention has distinguished advantages of enabling the one-touch operation with a simple construction, leading to an improved operation.
  • FIG. 1 is a perspective view showing one embodiment of the present invention
  • FIG. 2 is a exploded perspective view of the same embodiment
  • FIG. 3 is an exploded plan view of the same embodiment
  • FIG. 4 is a cross-sectional view taken along the line 4--4 of FIG. 1 and showing a hinge mechanism, joint mechanism and binding ring of the same embodiment;
  • FIG. 5 is a cross-sectional view taken along the line 5--5 of FIG. 1 and showing a hinge mechanism and binding ring of the same embodiment;
  • FIG. 6 is a perspective view of the same embodiment showing the operation of the joint mechanism
  • FIG. 7 is a cross-sectional view taken along the line 7--7 of FIG. 6 and showing the operation of the joint mechanism
  • FIG. 8 is a perspective view showing another embodiment of the present invention.
  • FIG. 9 is an exploded plan view of the second embodiment.
  • FIG. 10 is a perspective view of the second embodiment showing the operation of the joint mechanism.
  • the ring binder 1 shown in FIGS. 1-7 is made, for example, of plastic material, and, as illustrated in FIG. 1, comprises a pair of swing base plates 3 which are joined for swinging motion to the longitudinal edges 2a of a fixed base plate 2 by means of a hinge mechanism 4, so that the swinging movement of the swing base plates 3 will cause the binding rings 5 attached to the swing base plates 3 to be opened and closed.
  • the fixed base plate 2 is of generally rectangular shape, having a recessed section 21 formed in its top face 2b for accommodating the swing base plates 3 when in their closed positions.
  • the recessed section 21 has cut-out sections 22 formed along their longitudinal edges 2a by cutting inwardly in parallel.
  • a pair of swinging base plates 3 to be fitted within the recessed section 21 of the fixed base plate are of generally rectangular shape and of mirror image to each other, with their longitudinal lengths being approximately equal to that of the recessed section 21, with their widths approximately equal to half that of the recessed section 21, and with their thicknesses approximately equal to the depth of the recessed section 21.
  • the swinging base plates 3 have formed along their bottom edges and at positions corresponding to the cut-out sections 22 of the fixed base plate 2 base end sections 31 of generally circular cross-section, and the binding rings 5 are attached upright on the top faces of the base end sections 31 at two locations.
  • the hinge mechanism 4 comprises the first bearing sections 41 formed to extend outwardly at two center locations of the cut-out sections 22 of the fixed base plate 2, the first bearing shafts 42 formed on the base end sections 31 of the swing base plate 3 at positions corresponding to the first bearing sections 41, second bearing sections 43 formed in the longitudinal ends of the cut-out sections 22 of the fixed base plate 2, and the second bearing shafts 44 formed to extend from the longitudinal ends of the base end sections 31 of the swing base plates 3 at positions corresponding to the second bearing sections 43. As shown in FIG. 4, there are provided in the first bearing sections 41 longitudinal grooves 411, which are open downwardly.
  • the first bearing shafts 42 are of circular cross-section, and are provided longitudinally along cut-out sections 32 made in the base end sections 31 of the swing base plate 3 at positions corresponding to the first bearing sections 41.
  • the second bearing sections 43 extend longitudinally from the longitudinal ends of the recessed section 22 of the fixed base plate 2 and are open downwardly, with their open slots 43a being reduced to half in width toward the longitudinal ends of the second bearing sections 43.
  • the second bearing shafts 44 are of cylindrical shape, slightly smaller in diameter than the second bearing sections 43 and, in accordance with the shape of the reduced slots 43a, the outer halves of the second bearing shafts 44 are cut away into a semi-circular cross-section so that the second bearing shafts 44 can be inserted into place within the second bearing sections 43 via the reduced slots 43a only when the swing base plates 3 are held in the positions shown in FIG. 5.
  • the binding rings 5 comprise a pair of ring halves 51 of generally semi-circular shape, which are joined together in closed position to form a ring-like configuration.
  • the ring halves 51 are fixedly mounted at their bases 51b to the top faces of the swing base plates 3 at two locations near the end base sections 31, so that the ring halves 51 are opened when the top swing edges 3a of the swing base plates 3 move away from the top face 21a of the recessed section 21 in the fixed base plate 2, while they are closed when the top swing edges 3a move toward the top face 21a of the recessed section 21 in the fixed base plate 3a.
  • the ring binder 1 of the above-described construction will be assembled together in the following procedure.
  • the swing base plates 3 are effectively prevented from inadvertently dropping off the fixed base plate 2.
  • the opposing top edges 3a of the pair of the swing base plates 3 are joined together at the two locations near their longitudinal center by means of joint mechanisms 6, so that the pair of swing base plates 3 can swing up and down together to bring their opposing swing edges 3a into and out of contact with the top face 21a of the recessed section 21 in the fixed base plate 2.
  • one of the swing base plates 3 is provided with a resilient hinge mechanism 4 having a coil spring 45 incorporated therein.
  • the opposing ring halves 51 of the binding rings 5 are so designed that their end portions are securely latched together by means of the interlocking ends 52.
  • the joint mechanisms 6 for the swing base plates consists of female joint portions 61 integrally formed in the longitudinal swing edge 3a of one swing base plate 3 and male joint portions 62 similarly formed in the longitudinal swing edge 3a of the other base plate 3.
  • the female joint portions 61 are provided between a pair of support bars 612 which are formed to extend outwardly from the semi-circular recesses 611 made along the longitudinal edges 3a of the swing base plates 3.
  • the female joints 61 have pin-like engaging projections 63 made on the opposing side faces 61a.
  • the mating male joints 62 are provided on the underside of the semi-circular protrusions 621 formed to extend outwardly from the longitudinal edges 3a of the swing base plates 3.
  • the male joints 62 are also positioned at locations suitable for insertion into the female joints 61.
  • the male joints 62 have mating slots 64 made in the side faces 62a to extend along their entire widths.
  • the relative position between the engaging projections 63 and mating slots 64 should be determined to make it possible for the opposing swing base plates 3 to move between a flat position as shown in FIG.
  • both longitudinal edges 3a lie close to the top face 21a of the recessed sections 21 in the fixed base plate 2, and an inclined position as shown in FIG. 7 where both longitudinal edges 3a are upwardly away from the top face 21a of the recessed section 21 in the fixed base plate 2 and are slanted at approximately the same angle with respect to the fixed base plate 2.
  • sunk portions 65 are provided in the fixed base plate 2 for accommodating both the female joints 61 and the male joints 62 for accommodating both the female joints 61 and the male joints 62 when the longitudinal swing edges 3a of the swing base plate 3 are brought onto the top face 21a of the recessed section 21 in the fixed base plate 2.
  • the coil spring 45 is placed in a spring storage space 451 formed in the bottom edge sections 31 of one of the swing base plates 3 between the first bearing shafts 42, with one end 45a of the spring being in engagement with a spring support slit 452 provided in the top face 21a of the recessed section 21 in the fixed base plate 2, and other end 45b in contact with the undersides of the swing base plates 3, resulting in the longitudinal swing edges 3a of the swing base plates 3 being pushed away from the top face 21a of the recessed section 21 in the fixed base plate 2 by spring force.
  • the locking ends 52 of the ring halves 51 have their end portions 51a cut away in semi-circular cross-section to form cut-away surfaces 52a, and the cut-away surface 52a of one ring half 51 is provided with a locking projection 521, and the cut-away surface 52a of the other ring half 51 a locking recess 522.
  • the end portions 51a of the ring halves 51 come into engagement with each other at their cut-away surfaces 52a and, at the same time, the locking recess 521 and the locking projection 522 are brought into locking engagement.
  • the ring binder 1 of the above-described arrangement operates in use as follows.
  • push down only one swing base plate 3 to bring its longitudinal edge 3a closer into contact with the top face 21a of the recessed section 21 in the fixed base plate 2, which simultaneously brings the longitudinal edge 3a of the other swing base 3 closer into contact with the top face 21a of the recessed section 21 in the fixed base plate 2 by the operation of the joint mechanism 6.
  • the end portions 51a of the ring halves 51 are brought into engagement with each other and are locked together by the locking ends 52, thereby holding the binding rings 5 in their closed position.
  • the opening and closing operation of the binding rings 5 can be effected only by manipulating either one of the swing base plates 3, which makes it possible to open and close the rings in one-touch operation with one hand, thereby leading to much easier operation.
  • the joint mechanisms 6 effectively link the two opposing longitudinal swing edges 3a of the swing base plates 3 in operative engagement by means of the projections 63 slidably fitted into the mating slots 64. This is effective in providing the above operation in a simple arrangement, making it possible to reduce both manufacturing costs and manufacturing processes.
  • the fact that the male joints 62 slidably move within the female joints 61 as the swing base plates 3 rotate back and forth is effective in greatly reducing the longitudinal offset in the position of the pair of the swing base plates 3 by means of the operative engagement between the side faces 61a of the female joints 61 and the side faces 62a of the male joints 61, which, in turn, ensures a steady opening and closing operation of the binding rings 5 even if the mounting accuracy of the swing base plates 3 is rather low.
  • the fact that the engaging projections 63 and the mating slots 64 are provided in the female joints 61 and the male joints 62, respectively, enables to achieve the above advantages with the simplest arrangement on one hand, and leads to the joint mechanism in compact size.
  • the unique arrangement in which the opposing ring halves 51 of the binding rings 5 are locked together in mutual engagement via the locking ends 52 eliminates the necessity to hold the binding rings 5 in their closed position by means of the joint mechanism 6, which results in a simple arrangement and easy manipulation.
  • the opposing swing edges 3a of the pair of swing base plates 3 are connected by a joint mechanism 6 at two locations near their longitudinal ends.
  • the opposing base plates 3 are rotatably pivoted onto the fixed base plate 2 along their longitudinal edges 2a by means of a hinge mechanism 4, which comprises the first axial through-holes 46 formed to extend longitudinally along the both edges 2a of the fixed base plate 2, the axial through-holes 47 formed to extend longitudinally along the bottom edges 31 of the swing base plate 3 in line with the first axial through-holes 46, and elongated pins 48 to be inserted into the first and second axial through-holes 46 and 47.
  • the binding rings 5 fixedly attached on the swing base plates 3 move between their open and closed positions when the opposing swing base plates 3 are rotated back and forth.
  • the joint mechanism 6 of the present ring binder 1 consists of a recessed joint section 61 formed by cutting away one of the swing base plates 3 along its top longitudinal edge 3a except for the both ends, and extended joint section 62 formed along the top longitudinal edge 3a of the other swing base plate 3 at a position matching to the recessed joint section 61.
  • the recessed joint section 61 has male engagement projections 63 made to extend from its lateral side faces 61a.
  • the extended joint section 62 has mating female engagement slots 64 formed to extend sideways along its lateral side faces 62a.
  • the extended joint section 62 is fitted into the recessed joint sections 61, forcing the male projections 63 into the female slots 64, by means of resilient deformation of the recessed joint sections 61, for a sliding movement within the slots. It is possible to obtain advantages similar to those of the previous embodiment.
  • any number of joint mechanisms, binding rings and hinge mechanisms may be employed to advantage.
  • the form and arrangement of the joint mechanism are not necessarily limited to those of the embodiments described above.
  • metal plates may be provided to extend from the longitudinal ends of one swing base plate, and extended sections are made in the faces opposite to the metal plates, thereby forming male engagement, while grooves are made at the longitudinal ends of the other swing base plate forming a female engagement.
  • the metal plates function as a female joint and the other swing base plate a male joint.
  • the ring binder of the present invention is effectively utilized to removably bind together separate sheets with binding holes such as loose leaves, paper sheets for adhesively attaching photographs.

Landscapes

  • Sheet Holders (AREA)
  • Dowels (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Surgical Instruments (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Pivots And Pivotal Connections (AREA)
US08/663,262 1995-08-09 1996-01-26 Ring binder Expired - Fee Related US5692848A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP7203505A JP2814957B2 (ja) 1995-08-09 1995-08-09 リングとじ具
JP7-203505 1995-08-09
PCT/JP1996/000174 WO1997006015A1 (fr) 1995-08-09 1996-01-26 Instrument de reliure a anneaux

Publications (1)

Publication Number Publication Date
US5692848A true US5692848A (en) 1997-12-02

Family

ID=16475275

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/663,262 Expired - Fee Related US5692848A (en) 1995-08-09 1996-01-26 Ring binder

Country Status (12)

Country Link
US (1) US5692848A (ja)
EP (1) EP0785091B1 (ja)
JP (1) JP2814957B2 (ja)
KR (1) KR100198317B1 (ja)
CN (1) CN1051498C (ja)
AT (1) ATE203211T1 (ja)
AU (1) AU689018B2 (ja)
CA (1) CA2179529C (ja)
DE (1) DE69613953T2 (ja)
MY (1) MY112512A (ja)
TW (1) TW359645B (ja)
WO (1) WO1997006015A1 (ja)

Cited By (42)

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Publication number Priority date Publication date Assignee Title
US6142697A (en) * 1999-09-02 2000-11-07 Intercraft Company Ring lock for album or binder
US6203229B1 (en) * 1999-12-27 2001-03-20 Charles B. Coerver Bolt action ring binder assembly
WO2001019622A1 (en) * 1999-09-15 2001-03-22 Acco Brands, Inc. Binder mechanism
US6514000B2 (en) 1999-06-05 2003-02-04 Univenture, Inc. Storage device
US20030123923A1 (en) * 2001-12-27 2003-07-03 Kokuyo Co., Ltd. Binder
US20040086323A1 (en) * 2002-10-25 2004-05-06 Lihit Lab., Inc. Binder
US20050201818A1 (en) * 2004-03-15 2005-09-15 Cheng Hung Y. Soft close ring binder mechanism
US20050201820A1 (en) * 2004-03-15 2005-09-15 Word Wide Stationery Manufacturing Company, Limited Soft close ring binder mechanism with reinforced travel bar
US20050201819A1 (en) * 2004-03-15 2005-09-15 Cheng Hung Y. Positive lock ring binder mechanism
EP1674288A1 (en) * 2003-10-14 2006-06-28 Kokuyo Co., Ltd. Binder and file
US20060147255A1 (en) * 2004-12-30 2006-07-06 World Wide Stationery Mfg. Co., Ltd. Ring binder mechanism spring biased to a locked position
US20060147254A1 (en) * 2004-12-30 2006-07-06 World Wide Stationery Mfg. Co., Ltd. Lever for a ring mechanism
US20060147253A1 (en) * 2004-12-30 2006-07-06 World Wide Stationery Mfg. Co., Ltd. Ring binder mechanism spring biased to a locked position when ring members close
US20060153628A1 (en) * 2002-09-27 2006-07-13 Kanji Tanaka Binding device
US20060153629A1 (en) * 2005-01-12 2006-07-13 World Wide Stationery Manufacturing Company, Limited Ring mechanism biased to closed and locked position
US20060225321A1 (en) * 2004-01-22 2006-10-12 Schwartz Russell J Hinge and Binding Apparatus for Displaying Cards and Papers in the Workplace
US20060251468A1 (en) * 2005-05-06 2006-11-09 World Wide Stationery Mfg. Co., Ltd. Ring mechanism with spring biased travel bar
US20070140778A1 (en) * 2005-03-22 2007-06-21 World Wide Stationery Mfg. Co., Ltd. Lever for a Ring Binder Mechanism
US7296946B2 (en) 2001-11-30 2007-11-20 Microsoft Corporation Ring binder mechanism
US20080175652A1 (en) * 2007-01-18 2008-07-24 World Wide Stationery Mfg. Co., Ltd. Ring Binder Mechanism
US20090110470A1 (en) * 2007-10-31 2009-04-30 World Wide Stationery, Mfg. Co., Ltd. Ring binder mechanism with polymeric housing and actuator
US20090110469A1 (en) * 2007-10-31 2009-04-30 Chun Yuen To Ring binder mechanism
US7549817B2 (en) 2002-12-18 2009-06-23 World Wide Stationery Mfg. Co., Ltd. Ready lock ring binder mechanism
US7648302B2 (en) 2006-09-27 2010-01-19 World Wide Stationery Mfg. Co., Ltd. Ring binder mechanism
US7717638B2 (en) 2005-02-18 2010-05-18 Meadwestvaco Corporation Refillable notebook
US7726897B2 (en) 2005-03-22 2010-06-01 World Wide Stationery Mfg. Co., Ltd. Ring binder mechanism
US7731441B2 (en) 2006-09-27 2010-06-08 World Wide Stationery Mfg. Co., Ltd. Ring binder mechanism
US7748922B2 (en) 2004-03-15 2010-07-06 World Wide Stationery Manufacturing Company, Limited Ring binder mechanism with dual pivot locking elements
US8047737B2 (en) 2006-09-27 2011-11-01 World Wide Stationery Mfg. Co., Ltd. Ring binder mechanism
US8162556B2 (en) 2008-12-30 2012-04-24 World Wide Stationery Mfg. Co., Ltd. Actuator for a ring binder mechanism
US8480327B2 (en) 2009-01-16 2013-07-09 Hans Johann Horn Binder apparatus
US8545123B2 (en) * 2009-04-03 2013-10-01 Dongguan Huang Jiang New Original Stationery Factory Ring binder
US8573876B2 (en) 2004-03-15 2013-11-05 World Wide Stationery Manufacturing Company, Limited Soft close ring binder mechanism with mating ring tips
US8851783B2 (en) 2010-06-09 2014-10-07 World Wide Stationary Mfg. Co. Ltd. Ring binder mechanism having snap-in ring members
US8876423B2 (en) 2005-02-18 2014-11-04 ACCO Brands Corporation Refillable notebook with release mechanism
US8899866B2 (en) 2012-04-28 2014-12-02 World Wide Stationary Mfg. Co. Ltd. Ring binder mechanism with self-locking actuator
US9033608B2 (en) 2010-01-14 2015-05-19 World Wide Stationery Mfg. Co., Ltd. Ring binder mechanism having dual time buffer actuator
USD735808S1 (en) 2012-04-23 2015-08-04 World Wide Stationery Mfg. Co., Ltd. Elliptical cross sectional ring member for a ring mechanism
US20150336417A1 (en) * 2014-05-26 2015-11-26 Angel Hoi Ling Wong Loose-left folder device
US9511617B2 (en) 2013-10-31 2016-12-06 World Wide Stationary Mfg. Co., Ltd. Ring binder mechanism
US9522561B2 (en) 2013-08-27 2016-12-20 World Wide Stationery Mfg. Co., Ltd. Ring binder mechanism
US9895922B2 (en) 2015-02-05 2018-02-20 World Wide Stationery Mfg. Co., Ltd. Ring binder with interlocking ring members

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GB2405830A (en) * 2003-08-12 2005-03-16 O K Buying Co Ltd Ring binder for one handed operation.
JP5540372B2 (ja) * 2009-05-29 2014-07-02 コクヨ株式会社 ファイル
CN102729691B (zh) * 2011-04-08 2016-06-01 国际文具制造厂有限公司 具有整体式结构的带环活页夹机构
TWI604965B (zh) * 2012-06-21 2017-11-11 金田技研股份有限公司 活頁夾及夾具結構
JP6311326B2 (ja) * 2013-04-16 2018-04-18 コクヨ株式会社 綴じ具及びファイル
AU2015347859B2 (en) * 2014-11-10 2020-09-03 Lihit Lab., Inc. Binding tool
JP6476804B2 (ja) * 2014-12-08 2019-03-06 コクヨ株式会社 綴じ具

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Publication number Publication date
JP2814957B2 (ja) 1998-10-27
MY112512A (en) 2001-06-30
TW359645B (en) 1999-06-01
DE69613953D1 (de) 2001-08-23
CN1158106A (zh) 1997-08-27
KR100198317B1 (ko) 1999-06-15
CA2179529A1 (en) 1997-02-10
EP0785091A4 (en) 1997-11-19
WO1997006015A1 (fr) 1997-02-20
CA2179529C (en) 2001-04-24
JPH0948194A (ja) 1997-02-18
ATE203211T1 (de) 2001-08-15
AU689018B2 (en) 1998-03-19
EP0785091A1 (en) 1997-07-23
CN1051498C (zh) 2000-04-19
AU4547196A (en) 1997-03-05
EP0785091B1 (en) 2001-07-18
DE69613953T2 (de) 2001-11-22

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